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Polaris Bios Editing ( RX5xx / RX4xx ) - Page 4

post #31 of 3337
Quote:
Originally Posted by PCIEgate View Post

ATIFlash can't find the card (no support yet, i guess).
Any possibility to flash this BIOS otherwise?

Hey, any chance you could share your RX 480 4GB BIOS? rolleyes.gif
post #32 of 3337
Quote:
Originally Posted by RaduZ View Post

Do you know if that is the standard spacing? I'm interested to know if my nzxt Kraken will fit one of these cards.

The Kraken g10 has a spacing of 53.3 mm as far as i know the same as the most arctic Gpu cooler
post #33 of 3337
I Submit 4GB Bios @ techpower up but still not online
post #34 of 3337
Quote:
Originally Posted by Ginmarr View Post

I Submit 4GB Bios @ techpower up but still not online

Could you upload it here? I would really appreciate that!
post #35 of 3337
del
Edited by Ginmarr - 7/5/16 at 11:10pm
post #36 of 3337
I have a Sapphire 8GB here... Can somebody with 4GB card flash to my bios directly?

I could share my bios if anybody interested smile.gif
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post #37 of 3337
Quote:
Originally Posted by Ginmarr View Post

Ellesmere.zip 95k .zip file

I checked your BIOS, you have the same VRAM chips as the RX 480 8GB. If you flash a RX 480 8GB BIOS you would unlock an extra 4GB of VRAM. thumb.gif

Thanks for sharing that, it's helped the development of PolarisBiosEditor
post #38 of 3337
Finally i've found what i was searching for. Unfortunately i think AMD will ship 8gb only for custom card, still, this might help who got a reference model. And btw, i knew it was the same memory chip, opened a reddit post, no one cared about me, submitted here, same rolleyes.gif

And i bet that those memory modules would be the same on the GTX 1060, so 3 and 6gb are equals.

By the way, if you need some help with translation, just ask thumb.gif
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post #39 of 3337
Those who said they have 8 VRAM chips on a 4GB card, are those chips 1GB or 512MB?

Don't understand why AMD will put on 8GB and disable half.
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post #40 of 3337
Quote:
Originally Posted by TheLAWNOOB View Post

Those who said they have 8 VRAM chips on a 4GB card, are those chips 1GB or 512MB?

Don't understand why AMD will put on 8GB and disable half.


I don't know why, but i made my theory a while ago:
Quote:
Originally Posted by NaXter24R View Post

I don't know if it was already asked but, has anyone have a 4gb model? Because i've read somewhere that reviewers have 2 bios so they can try the card with both 8 and 4gb.
Now of course you cannot "disable" a memory module, because you will cut the bus, but, i've found the 8gb memory modules: Samsung K4G80325FB-HC025.

That 25 at the end is the speed, so 0.25ns 8000Mhz, and they are rated at 1.5v.

On Samsung's datasheet there is another model working at 1.5v as well and it's the K4G41325FC-HC28. That 28 now stands for 0.28ns 7000mhz, and the interesting thing is that 7000Mhz are rated for 1.55v, so even higher power draw, and only in this model, because on the 8gb that 7mhz is still rated 1.5v.

It would be nice to have an inspection of the card, because there might be a chance that all cards are the same with a bios tweak (i don't know how, still, it's a chance, correct me if i'm wrong) so potentially, we could save some money.

I hope someone have the 4gb model and can check the memory modules, visually or with MemoryInfo.

Here is the datasheet for Samsung's GDDR5 modules: http://www.samsung.com/us/samsungsemiconductor/pdfs/PSG2015_1H_HR_singles.pdf

Here is the VRAM image on the PCB:

Same chip, only a production line, flashing a bios is easier than two production line, they probably had some discount on such amount of chips from Samsung.

Another thing i've discovered, those Samsung modules are rated 8ghz 1.5v. But using the bios editor the value is 1v. Maybe a bad read or a pleasant surprise?

nhJWXvgl.jpg
Edited by NaXter24R - 7/5/16 at 11:49am
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